How to connect and play on this server?

You must have the game version 1.12.2 installed. How to check? At startup, the game version will be displayed on the right, at the bottom. If it is a different version, you should change the current profile (left, bottom) and select version 1.12.2

Click the PLAY button, wait for the Minecraft game to load.

Choose: Multiplayer

Click the button "Direct connect", or if you want to keep the server in its list, press the button "Add server"

In the field "Server address" write: nl.minewind.com:25565(click to copy)